Bundle Analyzer Visualizer

About Bundle Analysis

Bundle analysis helps identify opportunities to reduce JavaScript bundle sizes, improving load times and user experience. Smaller bundles mean faster downloads and parse times.

Input Formats

[
  { "name": "vendor.js", "size": 450000, "gzipSize": 121500 },
  { "name": "main.js", "size": 180000 }
]

name,size,gzipSize
vendor.js,450000,121500
main.js,180000,48600

Best Practices

• • Keep initial bundle size under 200KB (gzipped)
• • Use code splitting to load only what's needed
• • Lazy load routes and heavy components
• • Remove unused dependencies and dead code
• • Monitor bundle size in CI/CD pipelines